Temporal changes in wetland plant communities with decades of cumulative water pollution in two plateau lakes in China's Yunnan Province  

作　　者：WANG Si-hai WU Chao XIAO De-rong WANG Juan CHENG Xi-ping GUO Fang-bin 

机构地区：[1]Key Laboratory of the State Forestry Administration on Conservation of Rare, Endangered and Endemic Forest Plants,Yunnan Academy of Forestry [2]National Plateau Wetlands Research Center, Southwest Forestry University [3]State Key laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences [4]Yunnan Provincial Key Laboratory of Cultivation and Exploitation of Forest Plants, Yunnan Academy of Forestry [5]Faculty of Ecotourism, Southwest Forestry University

出　　处：《Journal of Mountain Science》2017年第7期1350-1357,共8页山地科学学报（英文）

基　　金：funded by the National Natural Science Foundation of China(Grant No.31560092,U0933601);National Scientific and Technological Basic Work of China(No.2012FY110300);Science Fund of China’s Yunnan Government(Grant No.2015BB018,2009CC024);the State Key Laboratory of Phytochemistry and Plant Resources in West China(Grant No.P2015-KF11)

摘　　要：Abstract： Wetland plant communities in the plateau lakes of Yunnan Province, China, have decreased significantly over the past decades. To better understand this degradation, we analyzed the processes and characteristics of changes in wetland plant communities in two of the largest lakes in Yunnan Province, Dianchi and Erhai lakes. We collected records of native and alien plant communities in the two lakes from literature published from the 195os to current period. We calculated plant community types and their area in some historical periods when related data were reported, and analyzed the relationship between chances in nlant communities and water nollution. InDianehi Lake, 12 community types of native plant communities, covering over 80% of the surface in the 195os and 196os, were reduced to four types covering 2.4% by the late 2ooos. Alien plant communities started to appear in the lake in the late 197os, and have since come to cover 4.9% of the lake surface, thereby becoming dominant. In Erhai Lake, 16 community types of native plant communities, covering 47.1% of the lake surface in the late 197os, declined to lo community types, covering 9.3% of the surface, by the late 2ooos. Alien plant communities appeared in the middle 198os, and at present cover 0.7% of the surface area. It was indicated that changes in plant communities were significant related to water eutrophication. The area occupied by native and alien plant communities was, respectively, negatively andpositively related to the content of nutrients in water. This showed lacustrine pollution played an important role in native plant loss and alien plant invasion in the two plateau lakes.

关 键 词：Dianchi Lake Erhai Lake Wetland plantcommunity EUTROPHICATION Alien plant 

分 类 号：Q948[生物学—植物学] X524[环境科学与工程—环境工程]